Year	annual %
1960	1.7411808474692299
1961	1.870849614063255
1962	2.752667188669125
1963	2.9216411190018903
1964	3.656731015796985
1965	3.66648280262594
1966	3.432370063661255
1967	2.98754606695165
1968	3.242828876794545
1969	2.6480857111122846
1970	4.140648400270245
1971	5.0163194330344005
1972	5.90625351724097
1973	7.915546149655979
1974	14.664845435676451
1975	12.22706292068715
1976	9.711421109359126
1977	9.76746473607037
1978	7.57369772258264
1979	8.46533490414879
1980	13.54006971277995
1981	11.5097558377123
1982	9.58492764677445
1983	8.66927159808522
1984	7.06765638328172
1985	5.19562195429435
1986	2.73605256111872
1987	3.224154281175735
1988	3.0650407952219902
1989	3.92726718218467
1990	3.975183404288255
1991	4.1786227479846545
1992	5.2705899859293
1993	4.597903210065555
1994	4.414255563466195
1995	4.08646004554944
1996	3.0239510949552697
1997	2.223054305267995
1998	2.306479340359885
1999	1.8991144190705
2000	2.9475655997747596
2001	2.8573289351882902
2002	2.32690683615857
2003	2.09523529072289
2004	2.21620788926273
2005	2.52392898747161
2006	2.720047505292705
2007	2.482315466895415
2008	4.11407022033816
2009	0.437175412792701
2010	1.5205755786839
2011	3.2880142721979553
2012	2.5415447410800898
2013	1.3102335561866552
2014	0.220195628198753
2015	-0.0852072296963749
2016	0.16600988437561648
2017	1.37503641525339
2018	1.6892396580413
2019	1.44123966942341
2020	0.186938139702131
2021	2.4865043812082
2022	8.47117645590892
2023	5.78431554960862